| Value | Category | Cases | |
|---|---|---|---|
| 1 | none | 2439 |
41.1%
|
| 2 | mild | 2034 |
34.3%
|
| 3 | moderate | 1302 |
21.9%
|
| 4 | severe | 152 |
2.6%
|
| 5 | extreme/cannot do | 11 |
0.2%
|
| Sysmiss | 381 |